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Effect of live-fire training drills on firefighters' platelet number and function.

机译:实火训练演习对消防员血小板数量和功能的影响。

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BACKGROUND: The leading cause of line-of-duty death among firefighters is sudden cardiac events. Platelets play a critical role in the formation of an occlusive thrombus during an ischemic event. OBJECTIVE: The purpose of this study was to examine the acute effect of firefighting on platelet number and aggregability. METHODS: Apparently healthy male firefighters (N = 114; age 29.4 +/- 7.8 years) participated in 18 minutes of simulated firefighting activity in a training structure that contained live fires. Blood samples were obtained before and after simulated firefighting activity and analyzed for complete blood cell count (CBC), chemistry, and platelet number and function. Platelet function was measured using a PFA-100 analyzer to assess platelet aggregability. RESULTS: As expected, performing firefighting activity resulted in significant increases in heart rate (75 b.min(-1)) and core temperature (0.7 degrees C), and significant changes in blood chemistry values. The most important finding in this study is that 18 minutes of simulated firefighting caused a 24% increase in platelet number and a significant increase in platelet aggregability. CONCLUSIONS: Firefighting resulted in a significant increase in platelet number and aggregability, indicating that even short bouts of firefighting can increase thrombotic potential in apparently healthy firefighters.
机译:背景:消防员上班死亡的主要原因是突发性心脏事件。在缺血事件中,血小板在闭塞性血栓形成中起关键作用。目的:本研究的目的是研究消防对血小板数量和聚集性的急性影响。方法:显然健康的男性消防员(N = 114;年龄29.4 +/- 7.8岁)参加了包含实火的训练结构中的18分钟模拟消防活动。在模拟的灭火活动之前和之后获取血液样本,并分析其全血细胞计数(CBC),化学成分以及血小板数量和功能。使用PFA-100分析仪测量血小板功能以评估血小板的聚集性。结果:如预期的那样,进行消防活动导致心率(75 b.min(-1))和核心温度(0.7摄氏度)显着增加,并且血液化学值发生显着变化。这项研究中最重要的发现是18分钟的模拟消防导致血小板数量增加了24%,血小板凝集性显着增加。结论:消防导致血小板数量和凝集性显着增加,这表明即使短暂的一轮消防也可以增加看似健康的消防员的血栓形成潜力。

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